Synapomorphic characters of Zethus (Ischnocoelia) A habitus of Z. xanthocrhomus B labila palpus of Z. elongatus C propodeum of Z. integrus, oblique view; arrow indicates continuity between both apical lamellae. Scale bars: 1.0 mm.

  Part of: Lopes RB, Carpenter JM, Noll FB (2021) Cladistic analysis of Zethus Fabricius, 1804 (Hymenoptera, Vespidae): a new subgeneric classification. Journal of Hymenoptera Research 82: 253-283.